Refractory Materials Series

Calcined Bauxite

Product ID：Refractory Materials Series
Skype：wqecho@outlook.com
Phone: +8618039276615
Tel: +8618039276615
Email: info@dfxingguang.com
Time: 2021-09-11
INQUIRY

Description:

Calcined bauxite is one of the principal ores of aluminum. Bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas. Bauxite is obtained by calcining (heating)superior grade bauxite at high temperatures (from 85OC to 1600C). It removes moisture thereby increasing the alumina content. compared to an alumina content of about 57%to 58%in raw bauxite, calcined bauxite has an alumina content of 84% to 88%.

Application:

1. Producing bauxite cement.

2. Abrasives.

3. Ceramics industry.

4. Chemistry industry for all kinds of aluminum compounds.

5. Aluminium metallurgy.

6. Precision casting / Investment casting: bauxite grog fines can be made into the mold for precision casting.

7.Refractory: Aluminium silicate refractory fiber mixing magnesia and bauxite grog with binders to pour the molten steel ladle.

Specification:

The chemical composition table：

Grade	Al2O3 %	Fe2O3 %	TIO2 %	K2O+Na2O %	CaO+MgO %	Bulk density g/cm3
50-60	50-60	≤3.0	≤4.0	≤0.3	≤0.5	≥2.45
60-70	60-70	≤3.0	≤4.0	≤0.3	≤0.5	≥2.65
75	75min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.70
80	80min	≤3.0	≤4.0	≤0.3	≤0.5	≥2.80
85	85min	≤2	≤4.0	≤0.3	≤0.5	≥3.00
86	86min	≤2	≤4.0	≤0.3	≤0.5	≥3.10
87	87min	≤2	≤4.0	≤0.3	≤0.5	≥3.20
88	88min	≤1.8	≤4.0	≤0.25	≤0.5	≥3.25